From c72f74e2780350f16795dc4d69145b9c87cb3e97 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 1 Jan 2015 16:18:14 -0700 Subject: x86: ivybridge: Update microcode early in boot At present the normal update (which happens much later) does not work. This seems to have something to do with the 'no eviction' mode in the CAR, or at least moving the microcode update after that causes it not to work. For now, do an update early on so that it definitely works. Also refuse to continue unless the microcode update check (later in boot) is successful. Signed-off-by: Simon Glass --- arch/x86/include/asm/arch-ivybridge/microcode.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/arch-ivybridge/microcode.h b/arch/x86/include/asm/arch-ivybridge/microcode.h index bc9b87c44c..b868283761 100644 --- a/arch/x86/include/asm/arch-ivybridge/microcode.h +++ b/arch/x86/include/asm/arch-ivybridge/microcode.h @@ -7,6 +7,11 @@ #ifndef __ASM_ARCH_MICROCODE_H #define __ASM_ARCH_MICROCODE_H +/* Length of the public header on Intel microcode blobs */ +#define UCODE_HEADER_LEN 0x30 + +#ifndef __ASSEMBLY__ + /** * microcode_update_intel() - Apply microcode updates * @@ -16,5 +21,6 @@ * not updates were found, -EINVAL if an update was invalid */ int microcode_update_intel(void); +#endif /* __ASSEMBLY__ */ #endif -- cgit v1.2.1